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Finding the Fourth Proportional to 388,677.75, 536,509.53 and 227,584.59

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Solution

The fourth proportional to 388,677.75, 536,509.53 and 227,584.59 is: 314,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,677.75 : 536,509.53 = 227,584.59 : x
  2. Step 2: Convert to fraction form
    388,677.75/536,509.53 = 227,584.59/x
  3. Step 3: Cross multiply
    388,677.75x = 536,509.53 × 227,584.59
  4. Step 4: Simplify right side
    388,677.75x = 122,101,301,416.14
  5. Step 5: Solve for x
    x = 122,101,301,416.14/388,677.75
  6. Step 6: Final answer
    x = 314,145.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.